A planetesimal orbiting within the debris disc around a white dwarf star

Manser CJ, Gansicke BT, Eggl S, Hollands M, Izquierdo P, Koester D, Landstreet JD, Lyra W, Marsh TR, Meru F, Mustill AJ, Rodriguez-Gil P, Toloza O, Veras D, Wilson DJ, Burleigh MR, Davies MB, Farihi J, Fusillo NG, De Martino D, Parsons SG, Quirrenbach A, Raddi R, Reffert S, Del Santo M, Schreiber MR, Silvotti R, Toonen S, Villaver E, Wyatt M, Xu S, Zwart SP (2019)

Publication Type: Journal article

Publication year: 2019

Journal

Book Volume: 364

Pages Range: 66-69

Journal Issue: 6435

DOI: 10.1126/science.aat5330

Abstract

Many white dwarf stars show signs of having accreted smaller bodies, implying that they may host planetary systems. A small number of these systems contain gaseous debris discs, visible through emission lines. We report a stable 123.4-minute periodic variation in the strength and shape of the Ca II emission line profiles originating from the debris disc around the white dwarf SDSS J122859.93+104032.9. We interpret this short-period signal as the signature of a solid-body planetesimal held together by its internal strength.

Authors with CRIS profile

Involved external institutions

University of Warwick United Kingdom (GB) University of Amsterdam Netherlands (NL) Osservatorio Astrofisico di Torino Italy (IT) Ruprecht-Karls-Universität Heidelberg Germany (DE) Western University Canada (CA) California Institute of Technology (Caltech) United States (USA) (US) Instituto de Astrofísica de Canarias (IAC) Spain (ES) Christian-Albrechts-Universität zu Kiel Germany (DE) Lund University / Lunds universitet Sweden (SE) University of Leicester United Kingdom (GB) University College London (UCL) United Kingdom (GB) University of Sheffield United Kingdom (GB) National Institute for Astrophysics / Istituto Nazionale Astrofisica (INAF) Italy (IT) University of Valparaíso (UV) / Universidad de Valparaiso Chile (CL) University of Cambridge United Kingdom (GB) Gemini Observatory North United States (USA) (US) Universidad Autónoma de Madrid (UAM) Spain (ES) Leiden University Netherlands (NL)

How to cite

APA:

Manser, C.J., Gansicke, B.T., Eggl, S., Hollands, M., Izquierdo, P., Koester, D.,... Zwart, S.P. (2019). A planetesimal orbiting within the debris disc around a white dwarf star. Science, 364(6435), 66-69. https://dx.doi.org/10.1126/science.aat5330

MLA:

Manser, Christopher J., et al. "A planetesimal orbiting within the debris disc around a white dwarf star." Science 364.6435 (2019): 66-69.

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